Malicious PDF — malware analysis report

Static analysis result for SHA-256 79371624ebfae3a6…

MALICIOUS

PDF

338.0 KB Created: 2022-02-14 02:19:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: f37e8ce692b50df4fcb7ed8773283bb7 SHA-1: 407aa3313695b69e344eab2bfedc3a328af6b2ee SHA-256: 79371624ebfae3a67dab2bb1d1e3136522d57d0131a4e906c970fefb97c20fd6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://yubit.co.za/XSRYdR1H?utm_term=philadelphia+weather+report+today PDF link annotation
    • http://eventologia.com/userfiles/files/samagulobagonu.pdfIn PDF document text
    • http://beamstraffic.ae/amb/userfiles/file/7458200554.pdfIn PDF document text
    • https://regenerateacademy.com/file/jusaj.pdfIn PDF document text
    • https://taumed.kz/upload/2021/12files/2112161948180792338h2h8.pdfIn PDF document text
    • https://cathita.vn/upload/files/nutuwizuxopapuno.pdfIn PDF document text
    • http://idcla.net/upload/files/kamobu.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1618779508ef27---xipovufigiwujiwi.pdfIn PDF document text
    • http://bright-mineral.com/uploadfile/file/2021092717560266.pdfIn PDF document text
    • http://isped.net/kcfinder/upload/files/47578064683.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1615b13d464567---68782389748.pdfIn PDF document text
    • http://kukdae.com/files/fckeditor/file/gafewojilodaperi.pdfIn PDF document text
    • http://appextskihjthj.handylover.com/upload/files/xefapimibudiworigobuw.pdfIn PDF document text
    • http://ingenierie-mont-blanc.fr/kcfinder/upload/files/fijazudosixesuvel.pdfIn PDF document text
    • http://tantex.org/tantex/tantexuserfiles/file/xojozitumemavexurovasati.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/6879960222.pdfIn PDF document text
    • http://usaoxin.com/userfiles/2021-10/file/31331174383.pdfIn PDF document text
    • https://ptkas.com/kingkong/userfiles/files/34261641392.pdfIn PDF document text
    • http://fishtech.org/uploads/userfiles/file/file/62062326151.pdfIn PDF document text
    • http://aucoindeshalles.com/menu/file/viviminaxoli.pdfIn PDF document text
    • http://transbur.ru/admin/ckfinder/userfiles/files/73433193939.pdfIn PDF document text
    • http://metamorfozyayincilik.com/userfiles/file/zujebodululibenida.pdfIn PDF document text
    • https://searchlink.org/userfiles/file/54890608773.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/161791abbebe97---raregugudazekovu.pdfIn PDF document text
    • https://frezcentrum.hu/kcfinder/upload/files/59280492537.pdfIn PDF document text
    • https://webmanagement.colortown.ro/images/file/kawok.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161e28a9f03566---54423514933.pdfIn PDF document text
    • http://www.blslogistics.pl/public/scripts/kcfinder/upload/files/64444802436.pdfIn PDF document text
    • https://mimpidia.com/contents/files/zajabadimazovebotidajon.pdfIn PDF document text
    • http://koreaticketland.com/userfile/file/watikuposafepeperu.pdfIn PDF document text
    • https://eliteprotectiveservices.net/ckfinder/userfiles/files/48485941838.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1617840ee5bb68---gixepajab.pdfIn PDF document text
    • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161bb0a742c47b---gigudela.pdfIn PDF document text
    • http://ceraunavoltapizzeria.it/userfiles/files/xosurogununimorumem.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d7ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D7EA 18496 bytes
SHA-256: 49ae90e6bb4c36cac9791373a6ff49d2a7727d274a57fa272f5f222a65f23e65
font_01_sfnt_off000508e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x508E5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00052005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52005 10416 bytes
SHA-256: 508fe0a788158ef7b194eaf47194dbb0704b38150b838ceca86ff6919b0b9aa2